摘要
提出了一种腐蚀条件下飞机结构使用寿命监控的方法 ,以一般环境下疲劳定寿结论和预期日历寿命指标为前提 ,考虑地面停放预腐蚀和空中腐蚀疲劳的影响 ,综合腐蚀条件下疲劳寿命监控和日历寿命指标控制 ,通过建立监控目标函数 ,对飞机结构的首翻、大修和总寿命进行监控 ,保证飞机的合理使用和适时大修 ,并考虑了飞机在服役过程中转场情况 .
A method for supervising the service life of aircraft structures under corrosive environment was developed . Based on the evaluation results of fatigue life at room temperature and in the air and the expected calendar life index, considering the influence of pre-corrosion under ground environment and the corrosion fatigue during flight, an objective function was established to supervise the inspection threshold, overhaul intervals and total life. Fatigue life supervision and calendar life supervision were unified by this function. Significant corrosive environment change was considered. As an example, a practical supervising process was given.
出处
《北京航空航天大学学报》
EI
CAS
CSCD
北大核心
2003年第3期229-232,共4页
Journal of Beijing University of Aeronautics and Astronautics
基金
国家部委基金资助项目
关键词
腐蚀
疲劳寿命
使用寿命
日历寿命
监控
Aircraft parts and equipment
Corrosion
Fatigue of materials
Monitoring
Service life
